Polly Shannon (born 1 September 1973) is a Canadian actress. Shannon was born in Kingston, Ontario, and raised in Aylmer, Quebec. She is best known for her portrayal of Margaret Trudeau in the 2002 miniseries Trudeau, a film about the late Prime Minister of Canada Pierre Trudeau. In 1999, she appeared as Jen in an episode of the Canadian horror series, The Hunger.